Justice studies researcher Glenn Hanna of University of Guelph-Humber explained American gun laws to CBC Kids following the school shooting in Uvalde, Texas. 

Hanna said guns have been a part of American culture since the American Revolution, and that in Canada people who want to have guns have to have a specific reason for it.  

Also the assistant program head of justice studies, Hanna researches crisis/disaster management and investigations. Before joining UofGH he was an RCMP officer.